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VulnerabilityPublished Updated

CVE-2026-57214: Rabbitmq server · RabbitMQ is a messaging and streaming broker

Affects rabbitmq-serverSource GCVE Database

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Authoritative record:CVE-2026-57214· High 7.1

Not known to be exploited · CVSS 7.1 High · fixed in 4.2.5 : patch rabbitmq-server soon.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.2.5
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10rabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=stonkingOther threatsAffected
  • =4.0.5-10ubuntu5
  • =4.3.2-4ubuntu2
  • =4.3.2-4ubuntu3
Fixed in–
Ubuntu 26.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=resoluteOther threatsAffected
  • 4.0.5-8ubuntu2 – 4.0.5-10ubuntu5.2
8 affected builds
Fixed in–
Ubuntu 24.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=nobleOther threatsAffected
  • 3.12.1-1 – 3.12.1-1ubuntu1.7
6 affected builds
Fixed in–
Ubuntu 22.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=jammyOther threatsAffected
  • 3.8.9-3ubuntu1 – 3.9.27-0ubuntu0.6
13 affected builds
Fixed in–
Ubuntu 20.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server@3.8.3-0ubuntu0.3?arch=source&distro=focalOther threatsAffected
  • 3.7.8-4ubuntu2 – 3.8.3-0ubuntu0.3
11 affected builds
Fixed in–
Ubuntu Pro 20.04 LTSrabbitmq-serverpkg:deb/ubuntu/rabbitmq-server?arch=source&distro=esm-infra/focalOther threatsAffected
  • 3.7.8-4ubuntu2 – 3.8.3-0ubuntu0.3+esm2
13 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade RabbitMQ to version 4.2.5 or later, where this vulnerability is fixed. No other specific mitigations are indicated. Users should apply the official fix to prevent exploitation.

Description

RabbitMQ versions prior to 4.2.5 contain a vulnerability in the management UI where the x-internal-purpose queue or exchange argument is improperly escaped in an HTML title attribute. This flaw allows a user with permission to declare a queue or exchange to execute JavaScript in another user's browser. The vulnerability is fixed in RabbitMQ version 4.2.5.

References

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